Java Question class A { public int f() {return 0;} public int g() {return 3;} } class B extends A{ public int f() {return 1;} public int g() {return f();} } class C extends B { public int f() {return...

Java Question

class A {

public int f() {return 0;}

public int g() {return 3;}

}

class B extends A{

public int f() {return 1;}

public int g() {return f();}

}

class C extends B {

public int f() {return 2;}

}

A ref1 = new C();

B ref2 = (B) ref1;

System.out.println(ref2.g());

What is the answer?

1) The program will fail to compile

2) The program will compile without error and print 0 when run

3)The program will compile without error and print 1 when run

4)The program will compile without error and print 2 when run

5)The program will compile without error and print 3 when run